Wednesday, March 25, 2009

Today in Math we did number of the day, 1347.892. Then we were given aSudoku to complete using the letters... S.P.R.I.N.G.

The first one we were given was Easy,

The next one was supposed to be harder,

The last one was the Hardest,

We had to later correct them...

This is the answer for #1

2.

This is the answer for #2

After we were done we got to play a game with a friend called Isolation, this game is where the players take turns at colouring a hexagon, and you couldn't colour a hexagon that is joined to one that is already coloured. the object of the game was to be the last player to shade in a hexagon.

Thank You For Reading My Scribepost

The Next person to do the blogging will be ...

umm I don't know KevinI guess

Sorry that i wasnt able to post the answer for Sudoku #3 but i wasnt able to get it written down.

Saturday, March 14, 2009

Today at school we started with the Number of the day. For those who were away the number is 2468.135. Remeber number of the day is ALWAYS homework!

1. Half of the number of the day is:2. Write the number of the day in expanded form:3. Write the number of the day in written form:4.Round the number of the day to the nearest 100:5. What number is in the tenths place:6. The number of the day doubled is:7. Write the number of the day in expanded notation:8. Write a power using the number in the 100th place as the base and the number in the 10s place as the exponent:9. Write the above power in factored form:10. Cube the number in the ones place:11. Square the number in the hundreds place:12. Divide the number by 3.55 and round to the nearest hundredth:13. The product of all the numbers in the number of the day is:14. List all the prime numbers in number of the day:15. Write the number of the day in scientific notation:16. The whole number is divisible by (circle): 2, 3, 4, 5, 6, 8, 917. Combine the numbers in the 1s place and the 10s place respectively to make a two digit number and write the prime factors:20. Write a fraction using the 1000s place as the denominator and the tenths place as the numerator:21. Use any two numbers to make an improper fraction:22. Use any of the numbers to make a mixed fraction:23. Write the answer to number 22 as a decimal:24. Draw a picture to represent the answer to number 22:25. Write the answer to number 21 as a percent:We also took notes on Still More Probability.Random- an event in which every outcome has an equal chance of occuring.

Experimental probability- the probability of an event occuring based on experiment results.

Thursday, March 12, 2009

first we had to do the number of the day.Our number was 1247.936.Then we had a test.The test was about probability stuff.After if we were done the test we had to solve a question.The question was I have 3 pairs of hoodies(black,blue,red) 4 t- shirts, 4 pairs of pants and 3 pairs of shoes.If I wear ! of each. How many different outfits can I wear?White,Brown,Black. What is the provability I will wear all black?I choose DEVIN to do the next blog.

Independent events : - the outcome of one event had no effect on the outcome of another event.

Sample space: - all possible outcomes of an experiment.

Tree diagram: - a diagram to organize outcomes

- contains a branch for each possible outcome of an event.

QUESTION: Probability of landing a coin on heads and rolling an odd numberANSWER: 3/12

(simplify) 1/4 1:4 25% ( to find the answer you need to use a probability tree or a probability table.

For HOMEWORK we had to answer the question:

A) Trudy, Shana, Saira, Kendra, and Tracie are on team A. Jordan, Micheal, Terrance, Sean, and Suni are on team B. Use a diagram to show all the possible outcomes if the coach assigns each person on team B to defend against a player on team A.

So then most of us thought, Hmm, 4 letters, and we only want one of the letters so it must be:

P(W) = 1 --- 4

Another way of expressing that is25%or1 : 4

Second Question: What is the probability of drawing a S or an O from the bag?P(S or O) =favorable outcomes ------------------------ possible outcomes

Now you had to think, 4 letters and we want 2 of them so what are the chances of getting them?

It was, of course,:2 1-- simplified as --4 250%2 : 4

P(S or O) = 1 P(S or O) = 50% -- or 2 P(S or O) = 1 : 2

Third Question: What is the probability of drawing a consonant from the bag?P(consonant) =favorable outcomes ---------------------------- possible outcomes

Since in class, like around 10 people don't know what a consonant is so click that link for the definition.

Anyway, if you know what a consonant is, this is easy since there are 3 consonants, "S, N, and W". Three favorable outcomes, and four in total, you should know this by now:

P(consonant) = 3 -- 4

Another way to write this is75%or3 : 4

Fourth and last Question for "S.N.O.W.": What is the probability of drawing a "B" from the bag?P(B) =favorable outcome ---------------------------- possible outcomesReally simple if you listened, there are 4 letters, you want to draw "B", but there is no "B", so there is ZERO chance of drawing it. This is not out of 4 because now there are 5 choices:

P(B) - 0--5

Another way to write this is0%or0 : 5

After all that stuff, we were given ANOTHER problem.

A bag contains 10 marbles. Show the probability of the following events as a fraction, a ratio, and a percentage.

3 Blue

6 Red

3. Green

A. What is the probability of drawing a red marble?P(red marble)=favorable outcomes ---------------------------- possible outcomes

There are 6 red marbles, 10 marbles in total, this is obviously 3 over 5 simplified.3--5or60%or6 : 10

B. What is the probability of selection a red or blue or green marble?

There are ONLY red, blue, and green marbles in this bag so that makes it a 10 out of 10 chance. -.- STEPHANIE -.-P(R or B or G)1--1or100%or1 : 1

C. What is the probability of NOT selecting a red?P(B or G)=favorable outcomes ---------------------------- possible outcomes

Your trying not to get a red, so you have to find the probability of all the rest of the outcomes. So add up the amount of blues and greens to get your numerator and the total of all the outcomes as your denominator.P(B or G)=4 2-- simplified --10 5or20%or4 : 10

Friday, February 20, 2009

Then Mr. Isfeld gave us back our Algebra test from yesterday and told us it was a practice test. So then we corrected it.

*Opposites: Addition-> Subtraction. Multiplication -> Division.

Practice Test.

1. a+5=11 a+5-5=11-5 a=6

2. b-3=7b-3=3=7+3 b=10

3. c/5=25 5xc/5=25x5 c=125

4. 6d/6=30 d=5

5. 7e+8=29 7e+8-8=29-8 7e/7=21/7 e=3

6. 2f-2=8 2f-2+2=8+2 2f/2=10/2 f=5

7. g/3+2=7 g/3++2=7-2 g/3=5 g/3(3)=5(3) g=15

8. h/4-3=2 h/4-3+3=2+3 h/4=5 h=20

9. 4x+2+3x=9 7x+2=9 7x+2-2=9-2 x=11 VERIFY

1. a+5=11 6+5=11 11=11

2. b-3=710-3=7 7=7

3. c/5=25125/5=2525=25

4. 6d=306(5)=30 30=305. 7e+8=297(3)+8=29 21+8=29 29=29

6. 2f-2=82(5)-2=8 10-2=8 8=8

7. g/3+2=7 15/3+2=7 5+2=7 7=7

8. h/4-3=220/4-3=2 5-3=2 2=2

9. 4x+2+3x=94(1)+2+3(1)=9 4+2+3=9 6+3=9 9=910. There are two more than twice as many dogs as cats in the vet. If there are six cats, how many dogs are all in the vet? Show all your work including the equation and verify and answer in a sentence .

6 Cats6x2+2=d 12+2=d 14=d

Verify6x2+2=d6x2+2=1412+12=14 14=14

There are 14 dogs in the vet.

Then when we were done correcting the practice test. He gave us another question like that to answer:There are 2 more than half as many boys in class as girls. If there are 12 girls. How many boys are there? Show work.

12G/2+2=b 6g+2=b8=b

Please comment and see how you think of it :) enjoy . I know its not the best :)I choose GILBERT for the next Scribepost.

Tuesday, February 10, 2009

We started off our class by doingNumber of the Day. The number of the day was 7214.586. After that, we handed in our number of the day booklets for a check. We also got a chance to catch up on our provincial folder worksheets.

Some examples of the worksheets we had to finish are:

-Find as many ways as you can to represent 3/4, 1.25, etc.

-Match the correct fraction to thecorrect picture

-Order the fractions from least to greatest or greatest to least

Today's homework is to write analgebraic equation and solve it, for the following statement:

Daylon talked for 45 minutes in today's class. How many minutes did he work?

Make sure youstudy for the term test tomorrow. The test is going to be on everything we have learned since the beginning of the year, from rounding numbers to solving algebraic equations.